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Calculation of Transient Electric Field in 40.5kV Vacuum Interrupter
Author(s): 
Pages: 52-55,75
Year: Issue:  4
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  真空断路器暂态电场有限元法;
Abstract: 计算了40.5kV真空断路器开断空载变压器时由复燃和截流引起的暂态过电压.通过离散的傅里叶变换获得暂态过电压的三个主要频率分量,以此作为真空断路器的边界条件,首次对真空断路器灭弧室内的暂态电场采用有限元方法进行了计算.给出了灭弧室内的暂态电场分布,电场强度的最大值、发生时间及典型位置的电场强度随时间变化的曲线.讨论了暂态电场的一些特征,为真空断路器的绝缘设计提供参考.
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